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Weekly Challenges

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Challenge #79: Find the Closest Prime Number

ponraj
13 - Pulsar

Here is my solution!

 

Spoiler
Prime Number - MacroPrime Number - MacroWorkflowWorkflow
JoshuaGostick
12 - Quasar

My solution :)

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challenge_79.PNG
Karam
8 - Asteroid

Solution attached. Interesting challenge!

 

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challenge 79.PNG
Kenda
16 - Nebula
16 - Nebula
Spoiler
This one was fun.
I didn't go with the macro route. I just made the assumption that the prime number would occur within 11 plus or minus the given number. I then add a row for each number below that set of numbers and find the ones where the module is 0 only once. Then to find the closest, I take the difference between that list and the given number and keep only the lowest difference.
Capture.PNG

P.S. the community page isn't letting me post the .yxwz file so I had to export it before attaching to this post.
TonyA
Alteryx Alumni (Retired)

Here's my solution. I'm sure I could tighten this up but even as is I'm getting results for 10 digit numbers in under 3 seconds.

hanykowska
11 - Bolide

I liked this one :)

RolandSchubert
16 - Nebula
16 - Nebula

My solution

KMiller
8 - Asteroid

Solution attached. One macro for higher numbers and one for lower.

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18-06-2019 08-54-36.png18-06-2019 08-54-50.png

 

OllieClarke
16 - Nebula
16 - Nebula

Went for an iterative macro to brute force this. Fun challenge :-)

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challenge 79.PNG
Greg_Murray
12 - Quasar

Solution attached